Clean able trap fob sinks and the like



Aug. 14, 1928.

H. w. HOWCOTT CLEANABLE TRAP FOR SINKS AND THE LIKE Fiied Feb. 2. 1928 2 Sheets-Sheet. 1

ATTORNEY Aug. 14, 1928. 1,681,117

H. A. W. HOWCOTT CLEANABLE TRAP FOR SINKS AND THELIKE Filed Feb. 2, 1928 2 Sheets-Sheet 2 1 10/5 QZ -Lma INVENTOR .f/artleyfl "(J/owe ott ATTORN EY BY Mm.

Patented Aug. 14, 1928.

HARLEY A. W. HOWCOTT, OF BATON ROUGE, LOUISIANA.

CLEANABLE TRAP FOR SINKS AND THE LIKE.

Application filed February 2, 1928. Serial No. 251,364.

This invention relates to trapsfor sinks, basins and the like, and more particularly to readily cleanable fixtures ofthis character.

It is .well known that in fixtures of this character ordinarily used, a gooseneck or return bend therein has been'found necessary to provide a water seal in the fixture to prevent foul odors and gases from backing up and entering the room where the fixture is located. These return bend fixtures, owing to their location, are di'fiicult to clean, and are objectionable for the reason that they are subject to leakage incident to wear in the threads and washers employed in connection with the clean out plug.

A primary object of the invention isto eliminate these goosenecks or return bends in fixtures of this character, and while providing a straight pipe having readily accessible cleaning chambers, also so construct these chambers as to prevent all possibility of sewer gas backing up into the room and permits lost articles which may have dropped into the sink and entered the trap to be recovered without diliiculty, and yet prevent all possibility of. articles and sewage entering the sewerpipes and stopping them up.

Another object is to so construct a fixture of this character that sewer gas will be prevented from escaping into the room while the fixture is being cleaned.

Another object is to provide a fixture of this character composed of a plurality of readily separable parts which are so 0011* nested as to. prevent all possibility of leakage while permitting ready disassemblage forcleaning, repairs, and other purposes.

In carrying out these objects, the invention is susceptible of modification without de parting from the spiritor sacrificing any of the advantages of the claimed invention; there being shown in the drawingsfor illustrative purposes form, in which;

Figure 1 represents a front elevation slightly in perspective of a sink equipped with this improved fixture,

Fig. 2 is a vertical transverse section on. a larger scale, taken on line 2-2 of Fig. 1, Fig.3 is a similar view taken on line 3-3 of: Fig. 2,1

.uFig. 4. is a horizontal section taken on line 4r4c of Fig. 8,

Fig. 5 1s a similar view taken on line 5-5 of Fig.3,

Fig. 6 is a detail perspective view of one a preferred and practical of the hinge members used in mounting the trap door, 1

Fig. 7 is a similar view showing the trap door detached, I

Fig. 8 is a vertical section showing a slightly different form of the invention ap plied, and Fig. 9 is a transverse vertical section taken 111 a plane at right angles to that shown in Fig.

In the form shown in 1 to 7, the fix ture 1O embodying this invention is shown applied to a sink 1 between the outlet opening therein and the drain pipe 2, with which latter the fixture is connected by a coupling nut 3. The fitting 10, where it is connected with the sink 1 in the bottom of said sink, equipped with a strainer 4 sucl as is ordinarily used in sinks and over which is designed to be placed a rubber stopper 5 having a metal ring 6 for applying and removing it. As shown, the strainer lis made removable, and rests on a supporting shoulder 7 formed in theside walls of the outlet of the sink. A union-joint couples a plate 8 with the sink and this joint here numbored 9. The pipe 8 is designed to conduct the water, etc, from the sink 1 into container 11 which constitutes a part of tho fixture 10. The container 11 which may be of any desired contour, being here shown round with the pipe 8 threaded into an opening 12 formed in the circumference thereotfsaid container having flat rear and front faces 13 and 1 1-, respectively, the front face 1 1 being in the form of a cap having a threaded flange for removable connection with the container, and between which and the container is mounted a gasket 15 to ensure a watertight joint between these parts. Projecting radially from the cap 1% are a plurality of hand grips 16 which are designed to facilitate the removal and application of the cap. It is of course understood that this removable cap 14 affords access to theint-erior of the container 11, for purposes presently to be-described.

Two chambers 17 and 18 are formed within the container 11, the chamber 17 surrounding the opening 12 to receive the water, etc,

coming in from pipe 8, and which passes walls thereof are formed screened outlets 19, through which the water passes from the chamber 18 into the body portion of the container 11 and from this container the water strained in the manner above set forth passes through pipe 20 into another container 30 located in a plane below the container 11 and into which the pipe 20 extends to a point about midway the height thereof.

The container is preferably smaller than the container 11 and may be of any desired configuration, being here shown similar in shape to said container'll, and is provided with'a flat rear wall 31 and a similar front wall 32 made in the form of the removable cap having the flange 33 threaded onto the front of the container 30 and- 1 vent gases from backing up through the fixture 10 when the cap 1% has been removed for any purpose.

This container 30 with thevalve or trap door closed lower end of the pipe 20 is designed as a safety device and may or may not be usedas is found desirable, its principal function being as a precaution against sewer gas passing out into the room when the cap 14c is off. I

The trap door or valve 36 is shown in detail in Fig. 7 and is made in the form of a disk with a radially extending neck or shank 36 projecting from the perimeter thereof and from opposite side edges of which extend trunnions 38 designed to be journaled in bearings 10 carried by curved plates 41 fixed to the outer face of the pipe 20. A weight 4-2 is secured to the outer end'of the shank37 and operates to retain the door 36 in closed position, it being understoodof course that when water passes down through the pipe 20 and encounters this door 36 that it will swing downwardly in the dotted line path shown in Fig. 3 and permit the water to pass out of the con tainer 30 into the discharge pipe 43.

lVhen the screw cap 14L is screwed tightly on the container 11 with the gasket 15 located between these parts, a container which is water and gas-tight is ensured. The location of'the openings 17 and 19 in the chamhers l7 and 18 which are protected by suitable screens, operate to hold the water at a predetermined level in a manner similar to a gooseneclr'and provides an effective seal against any sewer gas passingup through this container. Should the container 11 or any ofthe chambers thereof become clogged, they may be easily cleaned by unscrewing the cap 1% and during this operation the trap door 36 will be closed as shown in Fig. 3 and prevent any possibility of sewer gas passing out into the room.

It will thus be seen that this fitting 10 will effectively prcvci'it any stoppage of the main sewer and any stoppage in the fixture itself may be quickly removed by removing either the cap 14. or or both, and after cleaning out the clogged portion, these caps may be quickly replaced and the device will be ready for use.

In Figs. 8 and 9, a slightly different form of fixture is shown, the parts of which corresponds to those of the figures just above described being given the same numerals, except that the exponent a is used in connection with them. In this form of the invention, the container 1.1 is similar in shape and construction to the contaii'icr 11 of the other figures, except as regards the arrangement of the chambers therein. in this form, a straining clnunber a l is formed by means of two laterally spaced partitions l5 and elG extending obliquely inward from the curved side wall of the container at a point near its discharge opening 11 with the free ends of said partitions terminating short of the opposed wall of the container nnd having one of them arranged below the 111lfi 1)811i111"0f the container, a little to one side of the center thereof. Within this chamber a l is formed a. partition screen 4-7 located at one side of a partition 18 which extends inwardly from the container side wall at a point opposite that from which the partitions 45 and 46 extend and is arranged between said partitions terminating at a point slightly in advance of the screened transverse partition e7, a similar partition 47 being formed on the other side of the partition 18. This arrangement of partitions 45, 46 and r 48, together with the screened partitions 17 and -17 provide three chambers i l, 49 and 50, arranged substantially at the center of the container 11* while another chamber 51, which may be termed the filtering chamber is arranged above the partition 45 and a discharge chamber 52 is located below the partition 46. It will thus be seen that with this arrangement, water entering through the pipe 8 into the container 11 will part enter the chamber 51 and part the chamber 4st and after the chamber 51 is filled, it will flow over the upper or free edge of the partition to into the chamber 44 and pass through the screened partition 47 into the chamber 19, and thence out through the screened partition 4'7 into the chamber from which it will overflow partition 16 into the discharge chamber 52 and pass down through the pipe 20, the container 3O to the main sewer. The water level is maintained at the point shown in Fig. 8 so as to ensure an effective seal against Ion the passage of gas and odors out of the container 11' to the room.

The container is similar to the one shown and described in the other figures and hence will not be described in detail in this connection.

Without further description it is thought that the features and advantages of the invention will be readily apparent to those skilled in the art, and it will of course be understood that changes in theform, pro- 7 portion and minor details of construction may be resorted to, without departing from the spirit and scope of the claimed invention.

I claim 2- l. A fixture of the class described comprising a truncated cylindrical fluid-tight receptacle having diametrically opposite openings in the periphery thereof to provide an inlet and an outlet therefor, a chamber formed in said receptacle and communieating with said inlet, another chamber surrounding said inlet chamber vand spaced from the walls of the receptacle, screened openings in the inlet chamber above the bottom thereof, similar openings in the other chamber at points above the openings in the first mentioned chamber, whereby a water seal is provided in said chambers in the path of'the material passing from the inlet to the outlet. 1

2. A fixture of the class described comprising a truncated cylindrical fluid-tight receptacle having diametrically opposite openings inthe periphery thereof to provide inlets and outlets therefor, a chamber formed in said receptacle and communicating with said inlet, another chamber surrounding said inlet chamber and spaced from the walls of the receptacle, screened openings in the inlet chamber above the bottom thereof, similar openings in the other chamber at points above the openings in the first mentioned chamber, whereby a water seal is provided in said chambers in the 3. A fixture of the class described comprising a cylindrical container closed at its opposite ends and having oppositely disposed'openings in the periphery thereof to provide an inlet and an outlet, spaced partitions extending obliquely from the inner face of the perimeter of said receptacle and terminating short of the opposed wall thereof, another partition extending from said opposed wall between said first mentioned partition, a screened partition arranged transversely between said partition whereby a water seal is formed in the path of the material entering through the inlet and passing out of the outlet.

41-. A fixture of the class described comprising a cylindrical container closed at its opposite ends and having oppositely disposed openings in the periphery thereof to provide an inlet and an outlet, spaced partitions extending obliquely from the inner face of the perimeter of said receptacle and terminating short of the opposed wall thereof, another partition extending from said opposed wall between said first mentioned partition, a screened partition arranged transversely between said partition whereby a water seal is formed in the path of the material entering through the inlet and passing out of the outlet, the partition extending between the transversely spaced partition terminating short of the opposed side wall of the receptacle and'extending beyond the screened transverse partition.

Signed at Baton Rouge, in the parish of East Baton Rouge, and State of Louisiana this 31st day of January, A. D. 1928.

HARLEY A. W. HOWVCOTT. 

